Question
Download Solution PDFWhich one of the following can be used to test the characteristics of an OFC?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDF- The Optical Time Domain Reflectometer (OTDR) is useful for testing the integrity of fiber optic cables (OFC).
- It can verify splice loss, measure the length, and find faults.
- The OTDR is also commonly used to create a "picture" of fiber optic cable when it is newly installed.
- Later, comparisons can be made between the original trace and a second trace taken if problems arise.
- The OTDR consists of a high power laser transmitter that sends a pulse of light down the fiber.
- Back-scattered light and reflected light returns to the OTDR through the fiber and is directed to a sensitive receiver through a coupler in the OTDR front end.
- For each measurement, the OTDR sends out a very high power pulse and measures the light coming back over time.
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